ess of discretized catch-slip ensembles in modeling actomyosin networks. Flagellar length control in Chlamydomonas is a tractable model system for studying the general question of organelle size regulation. We have previously proposed that the diffusive return of the kinesin motor that powers intraflagellar transport can play a key role in length regulation. Here, we explore how the motor speed and diffusion coefficient for the return of kinesin-2 affect flagellar growth kinetics. We find that the system can exist in two distinct regimes, one dominated by motor speed and one by diffusion coefficient. Depending on length, a flagellum can switch between these regimes. Our results indicate that mutations can affect the length in distinct ways. We discuss our theory's implication for flagellar growth influenced by beating and provide possible explanations for the experimental observation that a beating flagellum is usually longer than its immotile mutant. These results demonstrate how our simple model can suggest explanations for mutant phenotypes. A balanced pattern of occupations enhances the health and fulfills the needs of individuals, families, communities, and populations (American Occupational Therapy Association [AOTA], 2014b; Hocking, 2019; Meyer, 1922). Occupations are personalized "everyday activities that people do as individuals, in families, and with communities to occupy time and bring meaning and purpose to life" (World Federation of Occupational Therapists, 2012, para. 2). The purpose of this statement is to describe occupational therapy's role and contribution in the areas of health promotion and prevention for internal and external audiences. AOTA supports and promotes the involvement of occupational therapy practitioners? in the development and delivery of programs and services that promote health, well-being, and social participation of all people. Copyright © 2020 by the American Occupational Therapy Association.IMPORTANCE This Practice Guideline provides stakeholders with a condensed summary of a large number of effectiveness studies. It is a valuable tool for facilitating decision making related to occupational therapy interventions for children ages birth-5 yr. OBJECTIVE Early childhood (birth-5 yr) is a critical period in which the foundation of key life occupations is developed (e.g., eating, dressing, play, learning, social participation, rest and sleep, and chores). The development of cognitive, motor, social-emotional, and self-care skills is important to support these occupations. This Practice Guideline synthesizes recent systematic reviews (SRs) on these areas of development to promote decision making for and high-quality interventions with this population. METHOD Four SRs related to cognition, mental health, motor function, and ADLs analyzed studies published from 2010 to 2017 retrieved from six electronic databases (MEDLINE, PsycINFO, CINAHL, ERIC, OTseeker, and Cochrane). RESULTS A total of 196 articlesion, Inc.IMPORTANCE Level I fieldwork is an integral part of occupational therapy education, yet limited research exists on how it affects the development of critical thinking skills. OBJECTIVE To compare the influence of a nontraditional Level I fieldwork experience with that of a traditional Level I fieldwork experience on the development of critical thinking. DESIGN Nonrandomized, pretest-posttest design. SETTING Traditional and nontraditional Level I fieldwork. PARTICIPANTS Seventy-three fourth-semester Master of Occupational Therapy students enrolled in a physical disabilities or psychosocial Level I fieldwork course. Each group completed the Health Sciences Reasoning Test (HSRT) at the beginning and end of each semester. INTERVENTION Sixteen-week nontraditional fieldwork or two 1-wk traditional fieldworks. OUTCOMES AND MEASURES HSRT. RESULTS All students showed a significant increase in scores on the Analysis subtest of the HSRT (p = .004). Both Analysis (p = .001) and overall HSRT (p = .025) scores improved significantly for 55 students who completed nontraditional fieldwork. Students who completed nontraditional fieldwork and had taken multiple previous science classes (p = .014) and had a higher grade point average (p = .033) had a greater likelihood of improving their HSRT score. Conclusion and Relevance Although in this pilot study both Level I traditional and nontraditional fieldwork improved critical thinking, further development and examination of pedagogical approaches that facilitate critical thinking are needed. https://www.selleckchem.com/products/ZM-447439.html WHAT THIS ARTICLE ADDS Both traditional and nontraditional Level I fieldwork can improve occupational therapy students' critical thinking skills. Copyright © 2019 by the American Occupational Therapy Association, Inc.IMPORTANCE If occupational therapy is to play an important role in improving population health, it is important to understand how academic programs are preparing new occupational therapists for this role. OBJECTIVE To determine current and desired coverage of population health concepts in entry-level occupational therapy programs. DESIGN Online survey administered to occupational therapy program directors. SETTING Higher education institutions. PARTICIPANTS Survey invitations were sent to all 182 entry-level occupational therapy program directors in Spring 2018. MEASURES Questionnaire responses were used to calculate current and desired curriculum coverage of 23 population health domains. RESULTS Of 182 program directors, 60 (33.0%) responded. Respondents agreed that 21 of 23 population health domains should be included in entry-level occupational therapy programs, and 11 of the domains had moderate or better coverage in their current programs. The largest gaps between current and desired coverage were found in global health issues, population health informatics, environmental health, and organization of health systems. CONCLUSIONS AND RELEVANCE Occupational therapy faculty can use these results to further develop the population health content of their programs. WHAT THIS ARTICLE ADDS Although the occupational therapy profession advocates for the role of occupational therapists in the improvement of population health, little information is available about how to prepare new occupational therapists for this role. This study addresses this gap by presenting occupational therapy program directors' assessments of current and desired levels of population health content within their programs. Copyright © 2020 by the American Occupational Therapy Association, Inc.